Results 91 to 100 of about 186,788 (382)

Skin‐Like Airflow Odometry for Micro Aerial Vehicles Based on Distributed Thermal Anemometers

Advanced Intelligent Systems, EarlyView.
A novel bioinspired skin‐like airflow odometry system for micro aerial vehicles employs distributed thermal anemometers to enable motion estimation in GNSS‐denied environments. Computational fluid dynamics simulation validates sensor deployment feasibility, while a transformer‐enhanced gated recurrent unit network extracts high‐precision airflow ...
Weicheng Di, Shihao Dang, Zheng Gong, Jiahui Zhang, Jinwu Xiang, Yonggang Jiang, Daochun Li, Zhan Tu   +7 more
wiley   +1 more source

GNSS. Romværs påvirkning på GNSS

, 2021
Global Navigation Satellite System (GNSS) blir mer og mer tatt i bruk i ulike samfunnssektorer i den hensikt å benytte seg av PNT (Position Navigation Time) informasjon. GNSS har som mange andre systemer feil og sårbarheter. Flertallet av feilene og sårbarhetene er bundet opp mot det svake satellitt signalet.
Lerø, Nils-Endre Anglevik, Trones, Andreas Engum   +1 more
openaire   +1 more source

Geophysical Prospecting for the Detection of Buried and Shallow Submerged Archaeological Sites of Roman Period in the Lagoon of Venice (Italy)

Archaeological Prospection, EarlyView.
ABSTRACT We present a study that combines several marine geophysical techniques to detect and map archaeological sites from the Roman period in the shallow waters of the Venice Lagoon, Italy. We employed marine electrical resistivity tomography (M‐ERT), a drone‐based unmanned surface vehicle (USV) multibeam sonar, and subbottom profiler technology to ...
Carlo Beltrame, Elisa Costa, Paolo Mozzi, Alberto Carrera, Jacopo Boaga   +4 more
wiley   +1 more source

Tightly Coupled GNSS and Vision Navigation for Unmanned Air Vehicle Applications [PDF]

, 2005
This paper explores the unique benefits that can be obtained from a tight integration of a GNSS sensor and a forward-looking vision sensor. The motivation of this research is the belief that both GNSS and vision will be integral features of future UAV ...
O'Shea, Peter, Roberts, Peter, Walker, Rodney   +2 more
core   +1 more source

Deciphering Neolithic Habitation in Aegean Thrace Through Geophysical Prospection Surveys

Archaeological Prospection, EarlyView.
ABSTRACT Despite the relatively extensive archaeological research conducted in Greece focusing on the Neolithic period, Aegean Thrace remains one of the least studied regions. To address this gap, the MAPFARM (Mapping the Early Farmers in Thrace) project employed systematic archaeological surface survey combined with large‐scale geophysical prospection
A. Sarris, N. Papadopoulos, D. Urem‐Kotsou, D. Oikonomou, K. Sgouropoulos, P. Chrysafakoglou, Ch. Karadima, M. Chrysaphi   +7 more
wiley   +1 more source

Kinematic Measurement of the Railway Track Centerline Position by GNSS/INS/Odometer Integration

IEEE Access, 2019
Accurate absolute measurement of existing lines is a task of fundamental importance to provide scientific basis for reconstruction. Traditional railway track survey methods in combination with classical geodetic surveying apparatus such as total stations
Yukun Zhou, Qijin Chen, Xiaoji Niu
doaj   +1 more source

Tropospheric Second-Order Horizontal Gradient Modeling for GNSS PPP

Remote Sensing, 2022
The asymmetric delay has a considerable impact on Global Navigation Satellite Systems (GNSS) Positioning, Navigation and Timing (PNT) applications. In GNSS analyses, the impacts of the asymmetric delay are commonly compensated by using the classical ...
Yaozong Zhou, Yidong Lou, Weixing Zhang, Peida Wu, Jingna Bai, Zhenyi Zhang   +5 more
doaj   +1 more source

Analyzing Anomalous Artefacts in TDS-1 Delay Doppler Maps [PDF]

, 2019
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Benson, Craig, Camps Carmona, Adriano José, Hu, Changjiang, Hyuk, Park, Li, Qiao, Rizos, Chris   +5 more
core   +1 more source

Feasibility Analysis of the Performance of Low-Cost Gnss Receivers in Monitoring Dynamic Motion

Social Science Research Network, 2022
The development of low-cost GNSS receivers broadens their applications, such as deformation monitoring, which have been performed routinely by survey-grade GNSS receivers.
Chen Xue, P. Psimoulis, Xiaolin Meng
semanticscholar   +1 more source

Uncovering Archaeological Treasures at Saruq al‐Hadid, UAE: Insights From Ground Penetrating Radar and Magnetic Data

Archaeological Prospection, EarlyView.
ABSTRACT Saruq al‐Hadid, located at the edge of the Rub Al‐Khali desert near Dubai's southern border with Abu Dhabi, is among the region's richest archaeological sites. Renowned for its historical role in metallurgy, trade and human habitation, the site was occupied from the Umm an‐Nar period through the post–Iron Age. Despite its significance, much of
Moamen Ali, Sonia Santos‐Assunção, Mohammed Y. Ali, Diana Francis, Mansour B. Radwan, Mariam A. Alsuwaidi, Bader M. Al Ali, Jamal H. Safi, Saif Ullah, Muhammed A. Iqbal   +9 more
wiley   +1 more source